For Delta Connection:
ComAir
CRJ40/CRJ50 - Green (or Purple = older)
CRJ70 - White (or Yellow = older)
ASA
CRJ200 - Go
I don't know if I just have a different generation in mind or something, but to my knowledge, the ASA CRJ's are purple, while the Comair CRJ's are a lavender-ey grey. The ASA CR7 is light blue. Does comair even fly CR7's?
Also, btw, I think Republic and co. uses their own safety cards that are the name regarless of what airline they're operating as.
This thread is great! I always though I was the only crazy-person like this out there!